Leah graduated from the University of Sydney as a veterinarian in 1999. She commenced a residency in anaesthesia and critical care at the University of Liverpool in the UK in 2003. In 2008 she became a Diplomat of the European College of Veterinary Anaesthesia and Analgesia by examination. She is also a member of the Australian and New Zealand College of Veterinary Scientists and a registered specialist in Veterinary Anaesthesia.
Following completion of her residency she returned to work in Australia at the University of Melbourne where she led the anaesthesia team for 5 years. Leah then relocated to Charles Sturt University in Wagga Wagga where she was involved in clinical work, teaching and research into animal welfare. In 2015 Leah founded Veterinary Anaesthesia Specialists, an anaesthesia consultancy and education company based out of Melbourne.